What is meant by allele frequency?

A. the rate at which alleles occur

B. the number of species that have the same trait

C. the time it takes alleles to changes

D. the number of generations in one population

Answer: Option A

Explanation:

Allele frequency can be defined as the measurement of relative frequency of allele on a genetic locus in a population.

It is expressed in the from of percentage or portion. It indicates the diversity of organism in the population. It can also be defined as the richness of the gene pool.

The changes in the environmental conditions can lead to the change in the allele frequency.

Allele frequency of lillied in a given population so it should be A